2. (Zo["o]l.) Either one of two species of large, brilliantlycoloredhumming birds of the genus {Topaza} ({Topaza
pella} or {Topaza pyra}), of South America and the West
Indies.
[1913 Webster]

Note: The two tail feathers next to the central ones are much
longer that the rest, curved, and crossed. The Throat
is metallic yellowish-green, with a tint like topaz in
the center, the belly is bright crimson, the back
bright red. Called also {topaz hummer}.
[1913 Webster]

Topaza pella — Topaz To paz, n. [OE. topas, F. topaze, L. topazos, or topazion, a kind of precious stone, Gr. to pazos, topa zion; possibly akin to Skr. tap to glow (cf. {Tepid}). According to some, the name is from Topazos, a small island in the Red Sea, where … The Collaborative International Dictionary of English

False topaz — Topaz To paz, n. [OE. topas, F. topaze, L. topazos, or topazion, a kind of precious stone, Gr. to pazos, topa zion; possibly akin to Skr. tap to glow (cf. {Tepid}). According to some, the name is from Topazos, a small island in the Red Sea, where … The Collaborative International Dictionary of English

Topaz — To paz, n. [OE. topas, F. topaze, L. topazos, or topazion, a kind of precious stone, Gr. to pazos, topa zion; possibly akin to Skr. tap to glow (cf. {Tepid}). According to some, the name is from Topazos, a small island in the Red Sea, where the… … The Collaborative International Dictionary of English